↗ https://reddit.com/r/investing/comments/1nx6xc3/which_website_to_figure_out_which_etfs_a_stock_is/
For some companies, like OKLO, I'm very curious as to why some institutions own it. The default reasoning is that Vanguard and Blackrock own it on the behalf of investors through ETFs. Okay... which ETFs? Which Mutal funds? Is there anything that exists to get to the bottom of that question? Where would I start?